Some pieces come in my handmade wood frame and are included in the price of the artwork. Check the product page for details. My frames are handmade, take a lot of time and work to produce, and I don't make them for every piece.
Note that I don't make frames on-request, as a one-off, or on a commission basis. If the artwork you're interested in buying doesn't come in a frame, it's unlikely I'll make a frame for it, but hey…you never know!